I have an FZ1. I'm planning to add an Olympus c210 TCON and, alternatively, a Nikon 4t Macro lens. I have 55mm UV and Circular Polarizing filters; both of theadd-on lenses require a 55mm to 52mm step DOWN ring in order to fitthe camera.

Should I mount the protective UV filter on the 55mm (stock) adapter tube before mounting the add-on lenses, or should I buy a 52mm to 55mmstep UP ring so that I can mount them at theend of the lens sequence, rather than at the beginning?

Jane -The uv filter can go at either end but I believe it is recommended that a polarizer be the outermost filter on a stack. Perhaps someone can confirm that.
This is somewhat of a moot point in that1) it would be unlikely for you to use a polarizer filter witha macroconverter and 2) the c210 does not have front threads for receiving a filter, anyway - although you can pressure fit a 55mm dummy filter onto the front of the c210 after filing the male threads slightly.
So,I wouldn't worry about getting yet another step ring.
Fred

Jane - The uv filter can go at either end but I believe it is recommended that a polarizer be the outermost filter on a stack. Perhaps someone can confirm that.
This is somewhat of a moot point in that 1) it would be unlikely for you to use a polarizer filter with a macro converter and 2) the c210 does not have front threads for receiving a filter, anyway - although you can pressure fit a 55mm dummy filter onto the front of the c210 after filing the male threads slightly.
So, I wouldn't worry about getting yet another step ring.
Fred

Well, that's a relief. One less thing to buy at this point!

But, seriously, how do you "pressure fit" a filter as you allude to? You mean sand down the male threads on the polarizer and force them onto the front of the c210. That sounds risky!

Anyway, now I can happily order my lens! :-)

I can hardly wait to get started with macro and close ups of wildlife! (Including human wildlife, I expect!)

Pressure fit the 55mm dummy filter (ex, glass removed from 55mmdamaged uv filter) to the front of the c210 after filing the threads a little to reduce the diameter. You then have 55mm threads for attaching other filters/converters.

Pressure fit the 55mm dummy filter (ex, glass removed from 55mm damaged uv filter) to the front of the c210 after filing the threads a little to reduce the diameter. You then have 55mm threads for attaching other filters/converters.

Fred,

Have you tried this?

So, you mean sand down the *circumference* of the dummy-ring?
How do you know when to stop?!